Cert is not paired with private key

I created CSR (by Keychain Access) from AppleWWDRCA.cer (which also created private and public keys), then send it to apple.developer site.
Double clicked on downloaded cert and it appears in Login keychain ("Certificates" section), but it is not paired with private key. "My certificates" section is empty.
What am i missing?

security find-identity -p codesigning shows "0 identities found"
I have exactly the same problem.

Did you solve this issue?

I have created certificate signing requests on both iMac and MacBook. I have generated certificates for our Pass Type ID in our developer account, downloaded and installed the certs on the originating iMac and MacBook and yet they have no associated Private Key.

Cert is not paired with private key
 
 
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